Carbureter.



o; G. KREIS, Jn.

GARBURETBE. APLIOATION FILED DEO.13, 1909.

Patented GQ15111911.

2 SEEETSPSHEET 1.

Fig. 1.

Fig. 3.

minnaars iemand/.shim

0. 0. KREIS, JR,

CARBURBTER. APPLICATION' FILED DEO.13, 1909.

2 SHEETS-SHEET 2.

nnv'ninr Patented 0st. 1'?, 191i.

Eg V@ .s WMM UNITED sriirns PATENT onrion OSGAR C. KREIS, JR., OF-DETROIT, MICHIGAN,IASSIGNOR TOGRAY MOTOR COMPANY, OF DETROIT,V MICHIGAN, A. CORYORA'IION' 0F MICHIGAN.

CARBURETER.

Speeif'cation of Letters Patent.

Patented Oct. 17, 1911.y

Application filed December 13:, 1909. Serial No. 532,781.

To all whom 11tmoy concern:

Be it known'that I, OSCAR C. Krimis, Jr., a citizen of the United States, residing at Detroit, county of vWayne, State of Michigan, have ii'ivented a certain new and uesiul Improvement .in Carbureteis, and decla-re the following to be a full, clear, and exa-ct description of the same, such as will enable others skilled in the art to whichit pertains to make and use the saine, reference being had' to the accompanying drawings, which form a part otl this specification.

My invention relates `to carbureters and an object otiiiy invention isrto'provide an improved carburetor which shall maintain a uniform and proper mixture when lthe throttle is partly closed. I secure this -object in the-'device illustrated in the accompanying drawings, in which,-

Figure l, is a-sectioiial elevation of a. car# bureter embodying my invention. Fig. 2, is an eleva-tion of the plug separate from the casing. Fig. 3, isa detail sectional view of a part ot' the plug shown in Fig. 2. Fig. Ll, is a. section on the line L -4, Fig. 1, looking from above. Fig. 5, is asection on'the line 5- 5, Fig.'1, looking from above.

A is a casing in which is a reservoir J for gasolene and a. mixing chamber o.

B is a plug fitted to turn in the casing A. and communicating witlithe mixing chain ber a, the intake C to the casing and the exit passage D which is intended to be connected to the intake passage of the motor.

. E is a curved passage inthe'plug B'having itslower end opening downwardginto the mixing chamber a, its upper end opening at the side of the plug B and' adapted to registervvith the intake passage C.

F is an aperture in the Wall of the plug B adapted to register with the passage D.

n K is a passage for the liquidhydro-carbon communicating with an annular opening I, through which annular 4openingthe hydrocarbon is delivered to the mixing chamber i and .rises in said chamber to about tlie'level f indicated. The annular-opening I hasfits center inline with the axis of the plug B.

G is the upper, and H the lower end of a pipein the-plug B. Thev upper end G opens at the periphery of said plug so as to register With-the passage C even when theplug is'tuined so/ ithat the opening e of the passave E no longer registers with vthe passa-ge @por whenthe opening @only communicates lair drawn through the vpassages C, E, F

' as shown.

is covered by theivall of said-casing. When the passage for air through the casing 'A is partly closed, as indicated -in Fig. 4i, the upper end (Si ot-tlie pipe G His fully open lto thev passage Grand the suctionv of the engine draws a strong draft of air through the pipe Cif l-l which impinges directly upon,

`and approximately atxright angles tontlie ylevel ot', they hydro-.carbon in the chamber a: and the annular opening I, thus producing a rich mixture of air and hydrofirbon vapor to'uiiite With and enrich the and D. Astlie passage through they casing i is contracted'by the turning of the plug B, the air moves through said passage with less velocity and is less efficient in taking up the gasolene. 'To remedy this defect, the pipe G Hprovides a passage'through which a stii-oiiger dralt'will be drawn when the other passage 'for air through the casing A ispartly closed.

It will benotedthat byplacing the pipe G H, as above. described, iii a rotating piece,

.the lower .end of said pipe will be main-` will always directly impinge upon the gasolene under the most favorable conditions for taking up the vapor.

I. have found by experimentthat the relative size of the pipe G 'IT should be about Claims 1.`Iii a carburetor having an air passage Etherethrough, a mixing chamber, andan adapted to adjust ythe area. of said passage,

a pipe-on said rotating member so located that one ofits ends shall be in communication with' the outer air `when the first-nientionedv air passage is partlyl closed and'havchamber that said other end .shall always i maintain the same relative position relative tothe hydro-carbon in' said chamber.

l 2. In a carbureter, the ,combination of a mixing chamber, an annular delivery opening for gasolene'opening into said mixing chamber,- `a rotating member adapted to regulate thelaiea of the passage through said-mixing chamber andl adapted to turn aboutan axis concentric with. said annular delivery opening, andv apipe in said rotary member having one end ad]acent toand directed toward -said annular opening, and its other end-opening at the side of said rotary member and communicating with the outer air when said rotary member has` partly ftherein at apredetermined place, a passage ,closed the passage through said, mixing phamberfsubstantially as and for the purposedescribed. v

- 3. In a carbureter, the combination of a v mixing chamber, means to maintain liquid through said carbureter including said mixing chamber, means for regulating the area of said passage,I a second passage communieating with the outer air and adapted to convey a current of air and deliver the same at said place, when the irst-named passage is closed, and means for-closing said second passage-when the first passage 1s open.

4. In combination, a carbureter having an air passage therethrough, a rotating member adapted to regulate the area of said passage, a delivery passage for hydro-carbon'open# ing into said passage having its center in line with the axis of said rotating member and a second `passage located in said rotating member opening at the side thereof at one end and at its other-end opening intol the first-named passage adjacent to` the opening'of thedelivery opening for hydrocarbon, substantially as-and for the purpose described.

In testimony whereof, I sign this specication in the presence of two witnesses.

OSCAR C. KREIS, JR. Witnesses:

VERA PILLMAN, y ELLIOTT J. S'mDDARD. 

